<%--
  Created by IntelliJ IDEA.
  User: HX
  Date: 2021/1/25
  Time: 10:24
  To change this template use File | Settings | File Templates.
--%>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
    <title>Title</title>
</head>
<body>
<%--全域查找--%>
<h1>${username}</h1>
<%--指定域查找--%>
<h1>${requestScope.username}</h1>
<h1>${sessionScope.username}</h1>


</body>
</html>
